| /* |
| * Copyright 2017, OpenCensus Authors |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package io.opencensus.implcore.trace.propagation; |
| |
| import io.opencensus.trace.SpanContext; |
| import io.opencensus.trace.SpanId; |
| import io.opencensus.trace.TraceId; |
| import io.opencensus.trace.TraceOptions; |
| import io.opencensus.trace.Tracestate; |
| import io.opencensus.trace.propagation.BinaryFormat; |
| import io.opencensus.trace.propagation.SpanContextParseException; |
| import java.util.Random; |
| import java.util.concurrent.TimeUnit; |
| import org.openjdk.jmh.annotations.Benchmark; |
| import org.openjdk.jmh.annotations.BenchmarkMode; |
| import org.openjdk.jmh.annotations.Mode; |
| import org.openjdk.jmh.annotations.OutputTimeUnit; |
| import org.openjdk.jmh.annotations.Scope; |
| import org.openjdk.jmh.annotations.Setup; |
| import org.openjdk.jmh.annotations.State; |
| |
| /** Benchmarks for {@link BinaryFormat}. */ |
| @State(Scope.Benchmark) |
| public class BinaryFormatImplBenchmark { |
| @State(Scope.Thread) |
| public static class Data { |
| private BinaryFormat binaryFormat; |
| private SpanContext spanContext; |
| private byte[] spanContextBinary; |
| |
| @Setup |
| public void setup() { |
| binaryFormat = new BinaryFormatImpl(); |
| Random random = new Random(1234); |
| spanContext = |
| SpanContext.create( |
| TraceId.generateRandomId(random), |
| SpanId.generateRandomId(random), |
| TraceOptions.builder().setIsSampled(random.nextBoolean()).build(), |
| Tracestate.builder().build()); |
| spanContextBinary = binaryFormat.toByteArray(spanContext); |
| } |
| } |
| |
| /** |
| * This benchmark attempts to measure performance of {@link |
| * BinaryFormat#toBinaryValue(SpanContext)}. |
| */ |
| @Benchmark |
| @BenchmarkMode(Mode.SampleTime) |
| @OutputTimeUnit(TimeUnit.NANOSECONDS) |
| public byte[] toBinarySpanContext(Data data) { |
| return data.binaryFormat.toByteArray(data.spanContext); |
| } |
| |
| /** |
| * This benchmark attempts to measure performance of {@link BinaryFormat#fromBinaryValue(byte[])}. |
| */ |
| @Benchmark |
| @BenchmarkMode(Mode.SampleTime) |
| @OutputTimeUnit(TimeUnit.NANOSECONDS) |
| public SpanContext fromBinarySpanContext(Data data) throws SpanContextParseException { |
| return data.binaryFormat.fromByteArray(data.spanContextBinary); |
| } |
| |
| /** |
| * This benchmark attempts to measure performance of {@link |
| * BinaryFormat#toBinaryValue(SpanContext)} then {@link BinaryFormat#fromBinaryValue(byte[])}. |
| */ |
| @Benchmark |
| @BenchmarkMode(Mode.SampleTime) |
| @OutputTimeUnit(TimeUnit.NANOSECONDS) |
| public SpanContext toFromBinarySpanContext(Data data) throws SpanContextParseException { |
| return data.binaryFormat.fromByteArray(data.binaryFormat.toByteArray(data.spanContext)); |
| } |
| } |